Cop-spinning- frame



UNITED STATES PATENT GFFICE.

GEO. H. DODGE, OF ATTLEBOROUGH, MASSACHUSETTS. f

COP-SPINNING FRAME.

Specification of Letters Patent No. 8,997, dated June 8, 1852.

To all whom it may'concern:

Be it known that I, GEORGE H. DODGE, of Attleborough, in the county ofBristol and State of Massachusetts, have invented certain new and usefulImprovements in Machinery for Spinning and Winding Yarn; and I do herebydeclare that the same are fully described and represented in thefollowing specification and accompanying drawing, letters, figures, andreferences thereof.

On the twenty-seventh day of November A. D. 1847. Letters Patent(numbered 5378) of the United States of America, were granted to me forsundry improvements 1n machinery for spinning and winding yarn; thepeculiar object of such improvements which were applied to a throstlespinning frame, having been to wind the yarn as fast as twisted or whenproperly twisted, upon each of the spindles, in a regular or propershaped cop which should have a binding thread between each two adjacentlayers of its yarn, the same being to prevent the cop from falling apartwhile being removed, or after its removal from the spindle. My presentor new, improvements have a similar object, they also being for thepurpose of obviating sundry difficulties which were subsequently foundto be incident to the operations of some one or more of the former ones.The drawings which accompany my specification will consequently exhibitmore or less of such former improvements as may be necessary to a fullillustration of the connection and operation of them with whatconstitutes my present or new improvements and for a more fulldescription than is hereinafter given of such former improvementsreference may be had to the specification of my said Letters Patent.

Of the drawings which make part of or appertain to the followingspecification, Figure 1, exhibits a front elevation of a throstle frame,having my improvements applied to it, Fig. 2, is an elevation of thatend of it to which the driving power is applied, Fig. 3, is a horizontalsection of it the same being taken through the axis of the main drumwhich drives the spindles, the scroll shaft and other parts situatedbelow the plane of the section being represented in top view. Figqlf, isan elevation of part of the rear side of the machine, the copping orring rail and the spindles generally placed on the side not beingexhibited, they being but repetitions of such contrivances as applied tothe front side and shown in Fig. l. Fig. 5, is a Vertical andlongitudinal section of the scroll shaft and parts immediately connectedwith it.

Such other figures as may be necessary to a full description anddelineation of my new improvements will be hereinafter referred to anddescribed.

In several of t-he said figures A, A, denote the cast iron ends of athrostle spinning frame.

B, B, on the sides are the step rails of the spindles; C, C, the upperbearing rails thereof.

D, D, D, &c., are the spindles; E the main drum by which they aredriven.

F, is the copping or ring rail.

G, G, G, &c., are the guides to t-he threads in their passage from thefront pair of drawing rollers to the spindles.

H, is a series of drawing rollers such as are in use in other throstleframes.

I, is the bobbin frame or creel.

K, is t-he main driving shaft from which the drawing rollers and otherparts receive their mot-ions.

L, is what I term the scroll shaft. It is situated beneath the mainshaft and extends transversely across the machine and revolves inpermanent bearings o, a, situated below the step rails. It also passesthrough and revolves in a third box or bearing Z), supported onaprojection c5, from the end A, of the frame. The said scroll shaft hasa reciprocating partial rotary motion imparted to it, it being made tomove first in one direction with a slow motion, and next in the oppositedirection with a much faster one.

I shall now proceed to explain a new mode or mechanism for effecting theupward and downward movements of the copping rail, and which differs insome important features from that explained in my said Letters Patentnumbered 5378.

Upon the scroll shaft L, a loose spur wheel M, is placed, in theposition as seen in the drawings, such spur wheel being made to receiveits motion from the main shaft K, by means of any proper collection ortrain of gearing made to intervene between the two.

Fig. 6, represent a transverse section of the machine taken through thesecond spindle D and as though the spectator were looking toward thescroll shaft.

N is the pinion gear, which engages with the spur wheel M. The wheels ofthe train of gearings by which the said spur wheel M, is put in constantrevolution in the direction denoted by the arrows on it, being seen atP, Q, R, S, T, U, V, W, X and Y, the last one Y, being fixed upon themaindriving shaft K. To the side of the spur wheel M, is attached acircular clutch flanch c, in which is an opening or passage d, see Fig.7 which is a side view of the spur wheel M, and its clutch flanch c.Working or fitting within the circular flanch c, is a circular disk orplate c, which is attached to a tubular shaft f, that plays loosely onthe scroll shaft. A spring click or dog g, is made fast to the shaft f,and works in a radial slot or opening cut in the circular disk e. Thisspring click operates in connection with the opening or passage el, ofthe clutch flanch c, and when within such opening, it clutches thecircular disk e, of the shaft f (and consequently the shaft f) to thespur wheel M. A curved lever h, (see Fig. 8, which is a view of thecircular disk or plate e, and the spur wheel M,) is applied to the sideof the circular disk or plate e, and works upon a fulcrum pin z' at itslower end and at the upper part of its curve it rests on the springclick g. The lever, 71., besides being curved is bent radially oroutward, as seen in the drawings, and so that such bent part during therotation of the lever, in a direction toward the adjacent end of themain frame, may be carried' down upon and made to bear against aprojection 7c, extending horizontally from an arm l, which projectsinward from one end of a horizontal rocker shaft m, disposed as seen inthe drawings, and working in bearings n, n, aiiixed to the outer side ofthe frame end A. On the other end of the horizontal rocker shaftarspring shifting lever o, is fixed, which works in connection with alocking plate 7), in the usual way. From the middle part of the shaft,a. fork arm g, rises upward and receives the driving belt within itsfork, and

pauses it to be moved eitherl upon a loose pulley r, or a fast-pulley s,(fixed upon the main driving shaft K,)' according` to the direction inwhich the shifting lever may be moved.

On the tubular shaft f, a scroll cam t, (see Fig. 9, which is a sideview of said scroll cam, its chain u., and another scroll cam o) isiixed. To the periphery of this scroll cam, one end of a chain u, isattached and extends around said periphery and has its other end securedto the periphery of a second scroll cam fv, which is fixed upon one endof a horizontal shaft w. On the opposite end of the shaft fw, is apinion ai, which gears into a -toothed quadrant or sector y, attached tothe scroll shaft L.

Fig. 10 is a longitudinal and vertical section of the machine takenthrough the toothed pinion w, and quadrant y, and as though thespectator were looking toward that side of the machine, at which thespindles arev situated, the drawing rollers and none of the machinery ontop of the frame being represented.

On the scroll shaft L, is another scroll cam z, (see Fig. 1l) to whoseperiphery a chain a', is attached, and around which it works, and fromwhich it extends to and partially around a grooved roller b. Said rollerb is connected with the up er end of an arm c, (as will be hereinafterd3escribed,) which extends upward from a transverse rocker shaft al.rIhen the chain a, passes downward and is attached to the periphery of asectoral arm e', which extends horizontally from another transversehorizontal rocker shaft f. There is also another horizontal rocker shaftg', which is connected with and operated by the rocker shaft f, by meansof a connecting rod L, and two arms of equal length d', c, extendingdownwardly respectively from the rocker shafts f, and g, suchconnections of the said shafts f and g, being so made and applied tothemi as to cause the movements 'of the shaft g, to correspond exactlywith, and be produced by, those of the shaft f. From each shaft f, g, anarm Z', extends at right angles, as seen in the drawings, and carries afriction roller m', atits extreme end. Upon the periphery of theserollers the lower ends of two vertiv cal rods n, n', rest, the said rodsbeing supported so as to slide freely up and down within proper bearings0, o', and having the copping or ring rail F, affixed to their upperextremities. Each rocker shaft f, g', has a sliding balance weight p',applied to an arm g, extended from it, in the direction as seen in thedrawings. Y

The form of the scroll cam z, is represented in Fig-11. This scroll camrotates freely on the scroll shaft, and is attached to the end of atubular shaft t, which turns on the scroll shaft L, and has a worm gearu, fixed upon its other end. The worm gear u engages with an endlessscrew or worm c.f,fi xed on a shaft w, which revolves in bearings in astandard or frame m, that is fastened firmly to the scroll shaft L. Thesaid shaft w", has a ratchet wheel y, fixed upon its outer end. Theshaft fw extends through one end o-f a vibrating lever a2, which is madeto play loosely upon the shaft. The said lever carries upon its otherend an impelling pawl b2, which engages with the ratchet wheel. Over theratchet wheel, is a retaining pawl c2, which is jointed to an arm d2,extending upward from the frame m. The ratchet wheel y', has a smallcrank handle b4, projecting from its side, the same being for thepurpose of turning the mechanism in reversed direction, and therebylowering the ring rails when the pawls are thrown up or out of the teethof the ratchet, and when desirable so to do. Directly under the rear orouter end of the lever 61,2, is a bent lever e2, which turns or moves onthe scroll shaft L, as a fulcrum. Its outer end when in its lowestposition rests on the top of a stationary standard or projection f2,which is aflixed to and projected from the main frame. The inner arm ofthe said lever e2, extends directly under a horizont-al projection g2,which is applied to a vertical rod, h2, extending downward from theadjacent ring rail F. The said projection g2, should be so adapted tothe rod that it may be elevated and depressed by adjusting screws ornuts in order that its position may be regulated as circum stances mayrequire. The scroll shaft has an arm 2, fixed firmly to it, the samebeing seen in Fig. 3, and also in dotted lines in Fig. l0. The said arm2, is made to act upon and depress a bent lever 7a2, whose fulcrum is onthe transverse rocker shaft d.

Fig. 12, exhibits a side view of the arm 2, the lever 7a2, and the leverwhich carries the grooved roller b. The inner or small arm Z2 of leverk2, is made to bear against the lower arm of the bent lever m2, whichworks upon a fulcrnm or pin n2, extending from the upper part of the armc. The upper arm of the lever m2, is bent horizontally over and restsupon a projection Q2, from the top of the arm c', and has the groovedroller b, turning freely upon it, the same being as seen in Fig. 13,which represents a view of the edge of the grooved roller b', the armc', and t-he rocker shaft el, to which said arm is attached. From thelong lever k2, a vertical arm or standard 02, projects upward, andcarries a roller p2, beneath and against which the chain a', passes. Theobject of the arm i2, levers 762, m2, rollers b', p2, and arm c,constructed as described and applied to operate in connection with thearm 02, and roller p2, shown in the drawings, is to cause the copping orring rail F, to perform a short and sudden rise or lift to `finish eachupward movement of it, and this so as to wind as little yarn as possibleat the nose of each of the conic layers composing the cop. It is veryimportant that but very little yarn should be wound at the nose or upperend of each layer of the cop.

In my Letters Patent numbered 5,37 8 I described a combination ofmechanism for the purpose of causing the ring rail to rise upward withthe increased velocity necessary to prevent the piling of the yarns inany one place or part of each layer composing the cop. The saidmechanism consisted of a cam, a lever and roll as combined with thescroll shaft and its appurtenances as therein explained, and incombination with such mechanism I claimed and described a projectionapplied to the cam, the same being for the purpose of producing a veryquick rise of the ring rail in order to finish the nose or upperextremity of each layer of yarn composing the cop. In the use of thecontrivance for elevating the copping rail such contrivance is made anddescribed in my said Letters Patent 5,378. I have found that there wastoo much strain brought upon the clutch, such strain being productive ofwear or other injurious consequences. Now, in order to avoid such strainor obviate'the diiiculty I have combined and make use of the improvedclutch contrivance, (with one opening d,) the two scroll cams t, and e,the chain fw, the pinion and quadrant y. By means of the quadrant andpinion, I give `to the scroll shaft the proper movement, and by theaddition of the cams 1f, o, and their chain, I am not only able toreduce the strain upon the spring click or dog, but by giving to eitherone or both of the said cams a proper form, I can dispense with the useof t-he cam or contrivance which was formerly used to produce theincreased speed of the copping rail. In order that it may be understoodwhat cam or contrivance I allude to I would remark that it isrepresented in Fig. 8 of the drawings of my said Patent 5,87 8.

' Having thus premised I will now proceed to describe a mode ofoperation of that part of the mechanism above described by which thebottom part of a cop is formed on each spindle and the whole copgradually built up or completed with a binding thread between each twoconsecutive layers of yarn wound on said cop, and making part thereof.

From what has been before specified, it will be seen that when thescroll cam e, is moved so as to drag upon its chain a', that theelevation of the ring rail F, must ensue, and this elevation continueswhile such drag takes place, also that this drag is produced when theshaft f is clutched to the spur wheel M, by the spring click or dog g,being within the opening d, of the clutch flanch c. As soon however asthe said spring click or dog c/ is forced downward and out of saidopening` by reason of the curved lever 7L, being carried into contactwith the projection 7c, of the arm Z, the tubular shaft f, will beunclutched, and left free to move in an opposite direction, and will beso moved in said opposite direction by the gravitating power of the ringrail which on being thus left free will fall down by its own weight orby means of any power applied to it to depress it.

The fall of the ring rail while the spine dles are in rapid revolutionwill cause the yarn to be laid on each cop in av helix which will crossthe several threads of the layer of yarn previously spun and wound onthe spindle. By means of the scroll or cam z, I regulate the length ofeach successive layer of yarn composing the cop. As the scroll shaft hasa positive motion imparted to it, that is as it is always made to rotateforward a certain distance or a certain number of degrees of a circleand not in the opposite direction or backward a like distance or numberof degrees, it will be seen that in order to increase the length of eachsuccessive layer of yarn wound on the s pindle, to. form the bottom partof the cop, the elevation of the ring rail must be gradually increased.This is produced by the peculiar shape given to the .scroll or cam z,and by moving or gradually turning said cam around on the shaft.

In my Letters Patent numbered 5,378 I described a mode f building-thecop, and I would remark that that method is the same as adopted by me atpresent. The first layer of yarn I suppose to be wound on the spindle adistance equal to about one half the length of the last layer composingthe bot-tom part -of the cop. From this it will readily be understoodwhy the scroll or cam e, must be gradually turned around on the scrollshaft so as to increase the length of each successive layer of yarncomposing the bottom part ofthe cop, what is termed the top part, andwhat is termed the bottom part of the cop, having been fully describedin my said Letters Patent numbered 5,378.

Itis the purpose of the worm gear u', worm or endless screw o', shaftfw', standard or frame ratchet wheel y, vibrating lever a2, impellingpawl b2, lever c2, standard or projection f2, projection g?, andvertical rod 71,2, hereinbefore described, to produce the gradualrotation of the cam in order to form both the top and bottom part of thecc-p. This last mentioned machinery for gradually turning around the came, in order to increase the length of each successive layer of yarn,forming the bottom part of the cop, constitutes no part of my present ornew improvements, but as it is used in vconnection with them I havedeemed it advisable to give some description of it, and would hereremark that for a more particular description of it lreference may behad to the specification of my said Letters Patent No. 5,378. In my saidspecification of said Patent No. 5,378 I described a mechanism theoffice of which was to ease the ring rail in its fall or to cause it tofall with the variable or required velocity or such a Velocity as wouldnot be so quick or sudden as either toV break the yarn or not put on thecop a sufhcient quantity of binding thread. I have made an improvementon such mechanism, which I shall now proceed to describe.

A tubular shaft r2 is placed and made to run freely upon the scrollshaft L, the said shaft 112 having a large spur gear s2 fixed upon it,which spur gear receives its motion (in the direction denoted by thearrow thereon) from a pinion t2 fixed upon one end of a shaft u2(represented in dotted lines,) which has upon its other end a gear b2,that receives its motion from the gear wheel P, hereinbefore mentioned.On the side of the spur gear s2, is a ratchet wheel to2. An arm 002 isfixed firmly to the scroll shaft L, and pro-jects downward from it, andcarries a small fly wheel y2 on an axle z2 extending horizontally fromit. The said fly wheel has a small pinion a3 aflixed to it, whichengages with the large spur gear s2. The said gear s2 during itsrevolution will so act upon the pinion a3 as to put it and the fly wheel,Q/Zin rapid revolution, in the direction denoted by the arrow on saidfly wheel. Ihis taking ,place while the ring rail is being raised, willcause a considerable momentum to be generated in the fly wheel. Now whenthe ring rail falls, the momentum so generated in the fly wheel will bebrought into action in such manner as to cause the pinion a3 to soVoperate against the gear s2 as to counterbalance in a certain degreethe tendency of the ring rail to fall too quickly or suddenly. The ringrail will thus be eased down, so as to prevent breakage of the threads.The last described machinery with some exceptions is essentially likethat described in my said Letters Pattnt No. 5378, for the purpose ofeasing the fall of the ring rail, and insuring the descent of it in suchmanner that a binding thread will be laid upon the cap. But in orderthat it may operate to better advantage I connect with it certain othermechanism which I shall now proceed to describe, such mechanismconstituting part of my new improvement.

I extend upward from the scroll shaft and in an opposite direction tothat in which the arm 002 extends an arm b3 to whose upper end I apply aretaining pawl or click c3 which I cause to rest upon the periphery ofthe ratchet wheel wz. Upon the completion of the upward'traverse of thecopping or ring rail F, the spring click or dog g is disengaged from theopening d, of the clutch flanch c, and permits the copping rail todescend which descent taking place, produces such act-ion upon theradial arm m2 as to arrest the momentum of the balance wheel y2 whichbeing effected, the pawl or retaining click c3 upon the arm b3 will takeinto the ratchet or catch wheel and lock the balance wheel to the spurgear s2 in such manner as to prevent the said balance wheel fromreversing its motion, and also permit the descent of the copping or ringrail to take place with a nearly positive or uniform motion, governed bythe speed of the spur gear s2.

My next improvement is for the purpose of e'ecting the change of thedownward to the upward motion of the copping rail in an easy manner andso as to prevent injurious strain when the spring click or dog g strikesinto gear with the clutch flanch c. Fig. 14 represents a view of theapparatus constituting` such improvement. An arm f3 bearing a roll g3extends outward' from the scroll shaft L, and between the arms x2 and b3as seen in the drawings. A spiral spring 77,3 (represented in Fig. 14 bydotted lines) is placed within a vertical tube 3, bolted or made fast tothe frame work. This spring is connected with and serves to depress arod k3, which extends upward throughthe same, and has a cam stud orprojection Z3 extending laterally from its upper part as seen in thedrawings. The lower end of4 the rod k3 projects below lthe tube orbearing 3 so that when the arm f3 rises upward it may be brought incontact .with suc-h lower end of the rod and produce the elevation orrising upward of said rod, such as will cause the cam Z3 of it to beborne against the upper end of a curved or bent lever m3 and therebyturn said lever on its fulcrum or pin n3 and in s'uch manner as to pressa flat spring o3 (which projects downward from the lower arm of thelever m3, as seen in the drawings) against the roll g3. The harder thearm f3 bears againstthe rod k3 the harder will the said flat spring beborne against the roll. 'Ihe fulcrum pin n3 is made to extend from aprojection p3 from the side of the tube or bearing 3.

The parts of the mechanism last described are so arranged that thepressure .of the spring may be brought into action immediately on thepassage of the spring do-g g into the opening t and in such manner as`to relieve the strain on the clutch apparatus, which might otherwise beproduced.

Another part of the machine or mechanism is the contrivance for loweringthe copping or ring rail for the purpose of doffing or removing the copsfrom the spindles. For this purpose I make use of a crank shaft g3arranged and having a crank r3 upon it, as seen in the drawings. On saidcrank shaft is an endless screw s3 which gears into or works in theteeth of a sector or quadrant t3 fixed upon the transverse rocker shaftd. By turning the winch or crank in the right direction the shaft cZ,will be put in mot-ion in such manner as to depress the grooved rollerb, and thereby slacken the chain a', and allow the sectoral arm e', t'ofall downward, ,and thereby permit the fall of the ring railsufficiently for the purpose of doiing the cops.

My next improvement may be thus described. The guides G, G, G, throughwhich the 'threads pass in their passage from the front drawing rolls tothe spindles, are represented as attached to a bar e3. In the commonthrostle machines this bar has heretofore been a stationary or immovablebar, placed at such a distance above the tops of the spindles as wouldbe sufficient to leave a proper length of yarn between each guide Gr,and the ring or traveler of its spindle, when the ring rail was in itshighest position. The descent of the ring rail, as a matter of coursewould constantly increase this distance, and as the centrifugal forcegenerated by the rotation of the yarns would cause such yarns to belly,or be thrown outward, it became necessary to place such spindle at suolia distance from the one immediately adjacent to it as to prevent theyarn of one when in rotation from coming in contact with that of theother. By my improvement I make the guide rail or bar w3, movable, andcombine it with the ring rail, by such machinery, as will graduallyelevate it, as the wind of each layer of the cop increases, from itscommencement to its termination. The method of accomplishing this, andregulating the distance between the guide rails, and the copping or ringrail during the period of their respective movements is as follows. Forthis purposeIuse on each side of the middle or center, a lever v3, whosefulcrum w3, is at its outer end, and is supported by a projection w3,extending downward from the frame work as seen in the drawings. Eachlever has a stud or projection g3, which rests upon the top of thecopping or ring rail F, and as the said copping or ring rail movesupward it imparts an upward motie-n to the levers. Upon a swell orprojection a3, on each lever a standard 0,4, supporting the guide railor bar us, rests, and from each of said standards a guide rod 54,extends downward through a suitable bracket or guide c4, or one such astogether with the said rod, will permit the guide bar ua, to play freelyup and down,

while at the same time it preserves the correct position of the bar inother respects. The guide rail will be moved upward when the coppingrail is elevated, its motion being in proportion to the relativedistances of the stud ya, (resting on the copping rail) and the swellz3, (supporting the standards of the guide rails) from the fulcrum w3,of the lever Iv3. The traverse of the guide rail in proportion to thetraverse of the copping or ring rail, being regulated by adjusting theposition of the swell z3, on the lever in accordance with the amount ofvariation which it may be desirable to have between the movements of theguide and the ring rails. A material advantage of this imtogether, or ata less distance apart, from one another than we could do with safetywere the guide rail made stationary. By reducing the distance betweenthe copping or ring rail and the guide rail during their respectivemovements we lessen the angle at which the yarn is delivered from theguide wires, to their respective spindles, and preserve the yarn fromthe liability of breakage or injury in coming in contact with eachother. By thus reducing the distance between the spindles, I am enabledto put more of them in a frame, than I could under other circumstancesor in other words were the guide rail to be kept stationary.

My next improvement is for the purpose of regulating the action of thecopping rail or rails on the scroll a, according to the leverage or inother words for providing a compensation for the difference of leverageproduced by the scroll. Vhen the chain of the scroll 2, is tangential tothat part of the periphery of the scroll which is at the greatestdistance from the axis of the scroll shaft, it is evident that the draftor drag upon the scroll produced by the action of the copping rail is ata maximum; so when said chain is tangential to that part of the scrollwhich is nearest toits center, or the axis of the scroll shaft, suchstrain is at its minimum, there being continual variation of the saidstrain during the rot-ary motion of the scroll or scroll shaft. It isvery desirable that this strain should be equalized, and for thispurpose, I make use of two cams d4, e, which revolve freely andrespectively upon two horizontal axes,f4, g4, arranged and extendingfrom the arms 71.4, h, secured to the main frame work, as seen in thedrawings. Fig. 15, represents a side view of one of these cams, and Fig.16, an edge view of the same, each cam being xed to the side of a rotarycircular wheel or pulley 4, 704, which also revolves freely with thecam. A chain Z4, is attached at its lower end to the arm Z', of theshaft f, its upper end being attached to the periphery of the wheel 4.Another chain m4, is attached to the periphery of the cam d4, extendsaround the same and is attached at its other end to the periphery of thewheel 104. A third chain n4, has one end secured to the periphery of thecam e4, is Vextended over the same, and has a weight 04, suspended toits lower ends. The two cams are made and arranged in such manner thatthe weight 04, shall so act as to compensate for the variation in theaction of the copping rail.

My next improvement is for the purpose of preventing the yarn frombeingeither broken or injured at the time, either of stopping orstarting the machinery and when the yarn is being laid o-n the spindleat the nose of the cop. It is well known that the part of the spindle onwhich the yarn is kfirst wound at the commencement of building the cop,must be of a diameter large enough to create a lateral drag of the yarnon the traveler, suilicient to readily overcome, when the traveler isfirst started on its rin the inertia of the traveler and impart to 1t(the traveler) a velocity on the ring, that will prevent the thread frombreaking. To obtain the advantages of a small spindle and at the sametime have a diameter at its bottom large enough to enable the yarn tostart the traveler, without danger of rupture to the former, I made animprovement which was described in my said Patent 537 8. Now it willreadily be seen that if We suddenly stop or start the machinery at orimmediately previous to the formation of the nose or small part of eachcop layer, the wind of yarn upon the spindle will be so small indiameter as not to be sufficient to produce the degree of lateral dragto the traveler required to overcome its inertia. In order that I maynot stop the machine precisely at such point, I provide the rocker shaftm, of the shifting lever 0, with the bent arm l, and the projection 7c,hereinbefore described, and so arrange said arm with respect to theshifting lever, that when the latter is moved outside to the extent ofits motion or so as to throw the driving belt upon the loose pulley 7",the projection k, shall be elevated or raised up so as to meet thecurved lever, L, of the spring click or dog g, sooner than it otherwisewould, and thereby cause the unclutching of the circular disk or platee, from the clutch anch c, and so as to arrest the motion of the ringrail, just before the formation of the nose of the cop, and while thewind of yarn, is of a diameter large enough to produce the amount oflateral drag sufficient to overcome the inertia of the traveler, whenthe machine is next started or put in mot-ion. It will also beseen thatif the machine is stopped at the time the nose of the cop layer is beingformed, the momentum of the traveler would be liable to break or injurethe yarn.

My next improvement is to be found in the manner in which I construct ormake each of the thread guides G, G. For this purpose I have representedin Fig. 17, a top view of one of the said guides, as it appears beforeit is inserted in the'guide rail. My improvement consists in making theopening or thread passage p4, of the guide, elongated, in the directionof a vertical plane, passing through all of the spindles; in connectionwith making the back of the opening or that part which is next to theguide board, and against which the thread rests, straight or very nearlystraight as seen at gf. The thread in its passage from the draw rollsthrough the opening of the guides, always lies or bears hard against therear side of said opening that is pro- -vided the front draw rollers areplaced in rear and some distance back from the guides, as they are inthe drawing. If the rear side of the opening is curved, the thread ofcourse will be drawn into the rearmost part of the curve, and this willobstruct the twist or more or less prevent it from passing into thatpart of the thread which lies between the guide, and the front drawroller. YTherefore it will be seen that if the back part of the passageof the thread guide is made straight as seen at g4, r4, the threadduring the motions of the traveler, will have the opportunity of movingor being moved or vibrated upon said straight part, whereby the twistwill not be obstructed, as hereinbefore mentioned.

Although I have described the above specified mechanism Linder certainforms of its parts as represented in the drawings, yet it mustbe bornein mind that I do not intend to limit my claim to such forms or sucharrangements as are described or represented but intend to vary the sameto any eX- tent to which I may be legally entitled so to do, so long asI do not change the novel character or features constituting myinvention or improvements.

What I claim is as follows,-

l. I claim the toothed quadrant y, the pinion m, and its shaft w, incombination with the two scroll cams t, "v, their chain u, tubular shaftf, and the clutch contrivance, made with the spring click g, and onesingle detent or opening d, the whole being applied to the scroll shaftL, and spur gear M, and made to operate substantially in the manner andfor the purpose as hereinbefore stated.

2. I also claim the ratchet wheel co2, the arm 3, and retaining pawl orclick 03, or any mechanical equivalent therefor, in combination with thebalance wheel apparatus (viz. the arm 502, the fly wheel y2, its shaftand pinion a3) and the spur gear s2, having a positive motion asdescribed, the whole being for the purpose, as specified.

3. And in combination with the scroll shaft and its mechanism foreecting the upward and downward movement of the ring rail, I claim themechanism for effecting the change of the downward to the upward motiono-f the said rail in an easy mann-er and so as to prevent injuriousstrain when the spring click g, strikes into the recess (Z of the clutchflanch c, the said mechanism consisting of the arm f3, roll g3, springh3, tube 3, rod k3, cam Z3, curved lever ma, and spring 03, (or theirmechanical equivalents) combined and operating together substantially asherein before described.

4. I also claim the improvement of so applying or combining the threadguide G, or the guide bar or rail M3, to or with the ring rail and theframe, that the said guide or guide bar shall be movable or made to moveupward and downward while the ring rail so moves; and this with amovement either equal to or in accordance with that of the ring rail ora variable one, as circumstances may require, the same being for thepurpose as specified.

5. And in combination with the scroll a, its chain and connections withthe ring rail, I claim a compensature mechanism or apparatus forregulating, the action of the copping rail or rails on the said scroll,according to the leverage or in other words for providing a compensationfor the difference of leverage produced by the scroll, as described, themechanism employed by me and the combination of which I also claim,consisting of the two cams CZ, e4, the pulleys 4, 704, the chains Z4, m4at, and weight o4, as applied together and to the frame, and operate ingsubstantially as specified.

6. And I claim the bent arm Z, and its projection .70, or otherequivalent contrivances in combination with the driving belt, shiftinglever or contrivance; the same being for the purpose, as liereinbeforeset forth.

7. And I also claim my improvement in the construction of the threadguide G; the same consisting in making the opening of it straight on itsrear side substantially as seen at (4, r4, the same being for thepurpose as herein before explained.

S. And I also claim my improved or new combination of mechanism by whicha sudden or very quick rise of the copping rail is eected in o-rder tofinish each upward movement and this so as to wind as little yarn aspossible at the nose or upper end of each conic layer composing the cop,the said combination consistingof the arm 2, upon the scroll shaft L,the levers m2, the arm c', and the rollers b', p2, as applied andoperated together essentially as hereinbefore specified.

In testimony whereof I have heretoset my signature this fourth day ofApril A. D.

